I received Greenwald’s glass and window cleaning kit in exchange for my unbiased opinion. I found it to be much better than the household cleaner I have used in the past. Being a commercial cleaner I would expect it to be somewhat better than the household cleaner but I was not expecting it to be this good. It definitely works great and leaves behind no streaks unlike some other cleaners I have tried. Some others no matter what I did it would streak, not Greenwald’s glass cleaner. This is a kit that comes with an excellent spray bottle and 6 concentrate packages. Making it very simple and easier storage than 6 individual bottles. Very easy instructions included. The spray bottle is an excellent quality as is the cleaner. Recommend this to all households as well as any company looking for high-quality product for all their window cleaning needs.